On July 30, 1945, the USS Indianapolis, which had just delivered key components of the Hiroshima atomic bomb to the Pacific island of Tinian, was torpedoed by a Japanese submarine. Only 316 out of 1,196 men survived the sinking and shark-infested waters.

On July 30, 1945, the USS Indianapolis, which had just delivered key components of the Hiroshima atomic bomb to the Pacific island of Tinian, was torpedoed by a Japanese submarine. Only 316 out of 1,196 men survived the sinking and shark-infested waters.

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True story referenced in Jaws. Also the subject of another movie that I can't clearly remember the title of. Mission of the Shark, maybe?